Comparison : Item # F2815, Inline Orifice Kit - Straight Ports
Item # F2815B80, Inline Barbed Orifice Kit for 1/16" ID Tubing
Item # F2815B85, Inline Barbed Orifice Kit for 1/8" ID tubing
Item # F3120100, Threaded Orifice Kit
Item # F960100, Threaded Adaptor Filter Kit